CN101259367A - Technique and device for simultaneously removing malodor of multiple gas mixture - Google Patents

Technique and device for simultaneously removing malodor of multiple gas mixture Download PDF

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Publication number
CN101259367A
CN101259367A CNA2008100506361A CN200810050636A CN101259367A CN 101259367 A CN101259367 A CN 101259367A CN A2008100506361 A CNA2008100506361 A CN A2008100506361A CN 200810050636 A CN200810050636 A CN 200810050636A CN 101259367 A CN101259367 A CN 101259367A
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China
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bio
gas
filter
carrier
trickling
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CNA2008100506361A
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Chinese (zh)
Inventor
张兰河
陈子成
于大禹
杨世东
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东北电力大学
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Priority to CNA2008100506361A priority Critical patent/CN101259367A/en
Publication of CN101259367A publication Critical patent/CN101259367A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The invention discloses an odor biological treatment process and a device in environmental engineering, meanwhile, the invention discloses a process for removing a plurality of mixed obnoxious gases and a device, which is characterized in that a trickling bio-filter A is arranged, the gas to be treated is pressurized by a draught fan to be delivered to an air pretreatment device, then the gas enters into a gas distributor at the lower part of the trickling bio-filter A, thereby carrying out the reactions of filtration, adsorption, degrading and biochemical when passing through a biological carrier and removing H2S; a trickling bio-filter B is arranged, the gas comes from the top of the trickling bio-filter A and enters into the trickling bio-filter B from the bottom of the trickling bio-filter A, which can pass through the biological carrier to remove volatile organic compounding exhaust gases; the trickling bio-filter A and the trickling bio-filter B are respectively provided with a spraying liquid A and a spraying liquid B, and the spraying liquid A and the spraying liquid B enter into the biological carrier from top to down. The process and the device have the advantages that the obnoxious gases are removed with different grades; the device is flexible and convenient to manufacture, assembly and disassembly with low cost; the trickling bio-filter B is provided with a multi-grade biological carrier; the trickling bio-filter A and the trickling bio-filter B are respectively sprayed with the spraying liquid A, the spraying liquid B and nutrient fluid thereof, which is convenient to operate, easy to adjust and are capable of removing a plurality of obnoxious gases with good treatment effect and strong ability against load impacts.

Description

A kind of technology and device of removing the various mixed gases stench simultaneously
Technical field
The present invention relates to bad smell biological treatment process and device in a kind of environmental project.
Background technology
In petrochemical industry, bio-pharmaceuticals, leather, paint enterprise production process and sewage sludge processing etc. the odor pollution problem usually takes place.In addition, city refuse landfill and also constantly distribute some putrescibility foul smell in contaminated river becomes one of the important pollution sources in city.These contaminated air not only have stench, excitant, corrosivity and inflammable, explosion hazard, and make the people produce unhappy and the detest sense, influence people's physical and mental health, even jeopardize people's life.Environmental administration more and more payes attention to the control of stench and processing, but present existing stench processing method and facility, operational and administrative expenses is relatively more expensive.Therefore, efficient, the low consumption of exploitation, the deodorization equipment that is easy to manage have become the main flow of current environmental protection management and design.
Deodour method can be divided into firing method, screening agent method, absorption method, absorption process, membrane separation process, biological deodorization method etc. by device type, and the scope of application of the whole bag of tricks and characteristics see attached list 1.This shows that usually the physical-chemical process that adopts needs high temperature, adds expensive oxidant and adsorbent etc. when administering foul smell, so exist that investment is big, operating cost is high, corrosivity is strong and shortcoming such as generation secondary pollution.Compare with physics, chemical technology, biological deodorization method has that investment is low, device is simple, equipment and operating cost is low, maintenance management convenient and be difficult for producing secondary pollution.In the equipment investment, biological deodorization method is lower than 1/2 of active carbon adsorption, and operating cost, biological deodorization method is lower than 1/3 of active carbon adsorption, is lower than 1/6 of chemiadsorption.
Table 1
Method Definition The scope of application Characteristics
Firing method Method by strong oxidation reaction degraded incendivity odorant Be applicable to high concentration, the processing of the incendivity odorant of little tolerance The purifying rate height, odorant is thoroughly divided to take off, and equipment is perishable, consume fuel, cost height.May form secondary pollution in the processing
The screening agent method Shelter the sense organ smell of stench or carry out smell and be in harmonious proportion the discomfort bureaucratic airs flavor that changes stench by in foul gas, applying some medicament The odorant that is applicable to low concentration is handled Because of everyone the different effect of sense of smell level of sensitivity is not quite similar, odor pollutant is not removed
Absorption process Use odorant in the dissolution with solvents foul smell and the method for deodorization Be applicable to the processing of the odorant of height, middle concentration Can handle the gas of big flow, technology is the most ripe, but purifying rate is not high, consumes absorbent, and pollutant is only transferred to liquid phase by gas phase
Absorption method Utilize the method for adsorbents adsorb odorant deodorizing Be applicable to the processing of foul gas low concentration, that high concentration requires Purifying rate is very high, can handle multi-component foul gas, but adsorbent expense costliness requires height, promptly lower humidity and dustiness to pending foul gas
Membrane separation process Utilize different to the permeability of film of foul gas and air, its selectivity is passed through, thereby reached the purpose of separation Be applicable to the processing of foul gas low concentration, that high concentration requires Separative efficiency height, rate of recovery advantages of higher; Shortcoming is high and existence obstruction and pollution problem of gas preliminary treatment cost height, membrane component cost
Bioanalysis Utilize the microbial degradation odorant and the method for deodorization Be applicable to the processing of biodegradable water miscible odorant Deodorization rate height, deodorization device is simple, and processing cost is cheap, and operation maintenance is easy, can avoid secondary pollution, but can not recycle pollutant
At some environmental protection facilities, in the process as sewage, Treatment of Sludge, produce a large amount of gases containing stench sulphureous gases and volatile organic matters (VOCs) based on hydrogen sulfide.In the place that hydrogen sulfide gas takes place, the concentration of volatile organic matter is also higher.Therefore, handle H at the scene 2In the time of S gas, need to investigate the effect of removing volatile organic matter.All the time, biologic treating technique concentrates on the improvement aspect of the gases containing stench sulphureous gases of communal facility, and many scholars have inquired into bioanalysis and removed H 2The research of S gas has obtained higher removal efficient.About the research of removing VOCs some reports are arranged also, but less for the research of hydrogen sulfide and volatile organic contaminant removal synchronously, technology is also immature.
At present, most bioanalysises are administered in the technological development of stench, adopt one-component (or the combination of several simple component) gas as handling object, the variation of gas load also is very sequential, stably, and in actual engineering, the technological achievement of abnormal load air-flow, multi-component complex mist is less.Therefore, exploitation is suitable for handling the specific pollutants microorganism, at the different components that mixes foul smell, thereby technology, the device of research employing different disposal, have important practical significance.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of technology and device of removing the various mixed gases stench simultaneously is provided.
The present invention adopts following scheme to realize: a kind of bio-trickling filter deodorizing technology of removing multiple mix waste gas, foul smell is got to gas pretreatment device 2 by air-introduced machine 1, after gas is handled through pretreatment unit 2, allow gas evenly enter bio-trickling filter A through distribution device 3 again, enter second level bio-trickling filter B then; Shower water is extracted out from buffer tank 7,11 by water pump 8,12, through spray equipment 9,20 water is evenly sprayed into bio-trickling filter A and B, water is in through the bio-carrier 14 in the packed layer, outside organism, form water membrane, the gas that enters in the tower is dissolved in moisture film, and then the microorganism absorption degradation on the suppressed by vector, carrying out biochemical reaction, the gas after the degraded is discharged in the atmosphere through cat head exhaust outlet 13.Shower water, is discharged by drainage arrangement at the bottom of the tower 4 through behind the bio-carrier 14 by water pump 8,12.When handling low concentration gas, bio-trickling filter need not backwash, but when handling the high concentration foul smell, filler stops up easily, for guaranteeing higher removal, bio-trickling filter should carry out regular backwash, with back purge system at the bottom of the tower 17 water is introduced in the filter tower, water is from bottom to top inflated on the interior bio-carrier of tower with backwash gas tube 16 simultaneously, aging biomembrane on the bio-carrier 14 is rinsed out, can make the microorganism on the bio-carrier 14 keep higher activity like this.
A kind of technology of removing the various mixed gases stench simultaneously, it is characterized in that, be provided with and drip filter tower A, pending gas is through air-introduced machine 1 pressurization, the body pretreatment unit 2 of supplying gas, after advance dripping the gas distributor 3 of filter tower A bottom, the microorganism on bio-carrier 14 is adsorbed, degraded, biochemical reaction, removes hydrogen sulfide; The liquid distribution trough 9 of spray liquid A through dripping filter tower A top from top to bottom enters bio-carrier 14, for microorganism supplements the nutrients; If drip filter tower B, from dripping the gas that comes out in filter tower A top, enter from the bottom and drip filter tower B, through multi-stage biological carrier 15, remove volatile organic waste gas; Spray liquid B from top to bottom enters bio-carrier 15 by dripping filter tower B top, for microorganism supplements the nutrients; The atmospheric pressure P that goes out gas pretreatment device is 8~150kPa, and temperature is 15 ℃-45 ℃, and gas is 20 seconds~35 seconds in the time of staying of dripping filter tower A, B, depends on the harmful rotten gas content; Described spray liquid A outside dewatering, contains following composition, is unit with g/L, peptone 0.8~1.4, KH 2PO 44.8~6.0, K 2HPO 42.5~4.0, NH 4Cl 0.5~1.1, M nSO 42.0~3.0, N aH 2PO 42.5~3.4, N aCl 1.5~2.2, C aCl 23.0~4.0; Described spray liquid B outside dewatering, contains following composition, is unit with g/L, urea 0.28~2.0, K 2HPO 41.0~3.0, KH 2PO 41.0~3.0, C aCl 20.25~3.0, F eSO 47H 2O 0.05~0.02, M gCl 26H 2O 0.1~0.3, M nCl 24H 2O 0.001~0.002.
A kind of device of removing the various mixed gases stench simultaneously comprises air-introduced machine 1, gas pretreatment device 2, storage tank 6,10, buffer tank 7,11, water pump 8,12, it is characterized in that drip filter tower A bottom and be provided with gas distributor 3, the top is provided with liquid distribution trough 9, the middle part is provided with bio-carrier 14; Be attached with microorganism on the bio-carrier 14; Drip that filter tower B bottom is provided with gas distributor 3, top is provided with spray equipment 20, the middle part is provided with multi-stage biological carrier 15, is attached with microorganism on the bio-carrier 15; Described filter tower B middle part is provided with multi-stage biological carrier 15, can be 2~5 grades; Described bio-carrier 14,15 is a composite, is made of organic hard material and software material, and as the filler of tower, organic hard material such as ABS, PVC make skeleton, and software material such as polypropylene, polyamide-based fiber can be attached with microorganism; Be provided with backwash pump 17, associating air-introduced machine 1 carries out backwash to dripping filter tower A, B.
The present invention compared with prior art, its great advantage is:
1. foul gas can be removed in classification, and bio-trickling filter A is to remove hydrogen sulfide gas, and its volume is approximately 1/4~1/3 of cumulative volume.Bio-trickling filter B is to remove VOC, and its volume is approximately 2/3~3/4 of cumulative volume, device fabrication, assembling, flexibly, convenient, expense is low.
2. can adopt the nutrient solution of different sprays according to the difference of removing gas componant, first order spray is removed the required nutrient solution of hydrogen sulfide gas, and second level spray is removed the required nutrient solution of VOC.
3. the bio-trickling filter tower body is divided into 1 layer or multilayer, and every layer is equipped with spray equipment, can regulate water spray as required respectively, in time washes away metabolite and the aging biomass of microorganism.Be connected with ring flange between the layer of tower body and the layer, easy access and dismounting, it can be according to testing or the needs of engineering change the height of tower body.
4. every layer is equipped with observation panel 5, observes the microbial growth situation by observation panel 5, in time regulates the shower water flow.
5. after this bio-trickling filter has been installed back purge system, can be at set intervals regular backwash bio-trickling filter, aging biomembrane is in time come off, guarantee biomembranous activity.This back purge system is made up of backwash pump and backwash gas tube.Can adopt original air-intake device to carry out blowback, save investment.
6. be provided with gas pretreatment device 2 before the bio-trickling filter, can regulate the temperature that enters gas in the tower.Play the effect of bellows chamber simultaneously, the air-flow that enters bio-trickling filter is fully mixed, and air-flow is more steady.
Effect of the present invention: one or several mix waste gas are had the high processing effect, can reach discharging standards or plant area's discharge standard, can remove the multicomponent mix waste gas under dynamic load, anti-load impact ability is strong.
Description of drawings
Fig. 1 constitutes schematic diagram for apparatus of the present invention.
Air-introduced machine 1, gas pretreatment device 2, gas distributor 3, drainage arrangement 4, observation panel 5, a filter tower A storage tank 6 are arranged among the figure, drip filter tower A buffer tank 7, a filter tower A water pump 8, a filter tower A liquid distribution trough 9, a filter tower B storage tank 10, a filter tower B buffer tank 11, drip filter tower B water pump 12, exhaust outlet 13, bio-carrier 14, multi-stage biological carrier 15, gas tube 16, the water pump 17 that recoils, blow-back pipeline 18, liquid backwash pipeline 19, a filter tower B liquid distribution trough 20.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of device of removing the various mixed gases stench simultaneously, as shown in Figure 1, foul smell is got to gas pretreatment device 2 by air-introduced machine 1, after gas is handled through pretreatment unit 2, allow gas evenly enter bio-trickling filter A through distribution device 3 again, enter second level bio-trickling filter B then; Shower water is extracted out from buffer tank 7,11 by water pump 8,12, through spray equipment 9,20 water is evenly sprayed into bio-trickling filter A and B, water is in through the bio-carrier 14 in the packed layer, outside organism, form water membrane, the gas that enters in the tower is dissolved in moisture film earlier, and then the absorption degraded of the Institute of Micro-biology on the suppressed by vector, carrying out biochemical reaction, the gas after the degraded is discharged in the atmosphere through cat head exhaust outlet 13.Shower water, is discharged by drainage arrangement at the bottom of the tower 4 through behind the bio-carrier 14 by water pump 8,12.When handling low concentration gas, bio-trickling filter need not backwash, but when handling the high concentration foul smell, filler stops up easily, for guaranteeing higher removal, bio-trickling filter should carry out regular backwash, with back purge system at the bottom of the tower 17 water is introduced in the filter tower, water is from bottom to top inflated on the interior bio-carrier of tower with backwash gas tube 16 simultaneously, aging biomembrane on the bio-carrier 14 is rinsed out, can make the microorganism on the bio-carrier 14 keep higher activity like this.Observation panel 5 among the figure, are used for packing microbial biofilm state in the observing tower; Blow-back pipeline 18, liquid backwash pipeline 19 is used for backwash process; Gas distributor 3, liquid distribution trough 9,20 can be shape such as spray head, is beneficial to even fluid distribution; Foul gas captures with air-introduced machine 1, and through gas pretreatment device, outlet pressure is 8~150kPa, and its temperature is advisable with 15~45 ℃; Dripping a filter tower A, the B time of staying, be advisable with 20~35 seconds, experimental result shows, the time of staying is long, and it is effective to remove stench, oversize as the time, then effect can not improved, and simultaneously, the time of staying is long, flow velocity is low, drips the filter tower height and strengthens, and investment strengthens, the operating cost height, the time of staying is relevant with the concentration that contains foul gas, and described gas pretreatment device is provided with heater, is provided with the adsorption layer of activated carbon.
Described bio-carrier 14,15, the aufwuch bacterial classification on it derives from the activated sludge of sewage treatment plant's hydrolysis acidification pool, adds the required nutrient solution of growth of microorganism, after cultivating domestication a period of time, imports and drips filter tower A, B, carries out inoculation membrane formation.
Spray liquid among the present invention is except keeping bio-carrier humidity, and main is that trace element and moisture such as nitrogen, phosphorus, potassium are provided to microorganism metabolism.Removing hydrogen sulfide gas is the spray liquid composition that main bio-trickling filter A adopts, and shown in subordinate list 2, removing VOC is main bio-trickling filter B, and the spray liquid composition of employing is shown in subordinate list 3.
Table 2
Nutrients Peptone ??KH 2PO 4 ??K 2HPO 4 ??NH 4Cl ??MnSO 4 ??NaH 2PO 4 ??NaCl ??CaCl 2
Concentration ??1.2 ??5.4 ??3.2 ??0.8 ??2.5 ??2.8 ??1.8 ??3.5
Table 3
Add medicament Dosage (g/L)
Urea K 2HPO 4??KH 2PO 4??CaCl 2??FeSO 4·7H 2O ??MgCl 2·6H 2O ??MnCl 2·4H 2O ??0.28~2.0 ??2 ??2 ??0.28 ??0.01 ??0.2 ??0.0016
The Main Ingredients and Appearance of spray liquid is a water, and the amount of spray liquid adds 3.5~5.8 liters of liquid and exceeds with the volume of every liter of filler.

Claims (7)

1, a kind of technology of removing the various mixed gases stench simultaneously, it is characterized in that, be provided with and drip filter tower A, pending gas pressurizes through air-introduced machine (1), the body pretreatment unit (2) of supplying gas, enter the gas distributor (3) that drips filter tower A bottom, through bio-carrier (14) adsorb, degraded, biochemical reaction, remove hydrogen sulfide; The liquid distribution trough (9) of spray liquid A through dripping filter tower A top from top to bottom enters bio-carrier (14), for microorganism supplements the nutrients; If drip filter tower B, from dripping the gas that comes out in filter tower A top, enter from the bottom and drip filter tower B, through multi-stage biological carrier (15), remove volatile organic waste gas; Spray liquid B from top to bottom enters bio-carrier (15) by dripping filter tower B top, for microorganism supplements the nutrients; The gas pressure P of body pretreatment unit of supplying gas is 8~150kPa, and temperature is 15 ℃-45 ℃, and gas was advisable with 20 seconds~35 seconds in the time of staying of dripping filter tower A, B, depended on the harmful rotten gas content.
According to the described a kind of technology of removing the various mixed gases stench simultaneously of claim 1, it is characterized in that 2, described spray liquid A outside dewatering, contains following composition, is unit with g/L, peptone 0.8~1.4, KH 2PO 44.8~6.0, K 2HPO 42.5~4.0, NH 4Cl 0.5~1.1, M nSO 42.0~3.0, N aH 2PO 42.5~3.4, N aCl 1.5~2.2, C aCl 23.0~4.0.
According to the described a kind of technology of removing the various mixed gases stench simultaneously of claim 1, it is characterized in that 3, described spray liquid B outside dewatering, contains following composition, is unit with g/L, urea 0.28~2.0, K 2HPO 41.0~3.0, KH 2PO 41.0~3.0, C aCl 20.25~3.0, F eSO 47H 2O 0.05~0.02, M gCl 26H 2O 0.1~0.3, M nCl 24H 2O 0.001~0.002.
4, a kind of device of removing the various mixed gases stench simultaneously, comprise air-introduced machine (1), gas pretreatment device (2), storage tank (6), (10), buffer tank (7), (11), water pump (8), (12) is characterized in that, drip worry tower A bottom and be provided with gas distributor (3), the top is provided with liquid distribution trough (9), the middle part is provided with bio-carrier (14); Bio-carrier is attached with microorganism on (14); Drip that worry tower B bottom is provided with gas distributor (3), top is provided with spray equipment (20), the middle part is provided with multi-stage biological carrier (15), and bio-carrier is attached with microorganism on (15).
According to the described a kind of device of removing the various mixed gases stench simultaneously of claim 4, it is characterized in that 5, described filter tower B middle part is provided with multi-stage biological carrier (15), can be 2~5 grades.
6, according to the described a kind of device of removing the various mixed gases stench simultaneously of claim 4, it is characterized in that, described bio-carrier (14), (15) are composite, constitute by organic hard material and software material, filler as tower, organic hard material such as ABS, PVC make skeleton, and software material such as polypropylene, polyamide-based fiber can be attached with microorganism.
7, according to the described a kind of device of removing the various mixed gases stench simultaneously of claim 4, it is characterized in that, be provided with backwash pump (17), the associating air-introduced machine carries out backwash to dripping filter tower A, B.
CNA2008100506361A 2008-04-17 2008-04-17 Technique and device for simultaneously removing malodor of multiple gas mixture CN101259367A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101780373A (en) * 2010-03-23 2010-07-21 浙江大学 Method for biologically removing sulfureted hydrogen from marsh gas
CN101862591A (en) * 2010-06-23 2010-10-20 重庆正天环保产业有限公司 Method for biological treatment of rubber vulcanized tail gas
CN101664637B (en) * 2009-09-16 2012-03-28 湖北省农业科学院植保土肥研究所 Multilayer mixed culture biological deodorizing filter tower and method for removing malodorous gases
CN101898079B (en) * 2009-05-25 2012-05-30 中国石油化工股份有限公司 Treatment method of storage tank-dissipating stinking sulfur-containing waste gas
CN102631837A (en) * 2012-04-27 2012-08-15 陈小光 Integrated type sulfur-containing waste gas purifying device
CN102921293A (en) * 2011-08-12 2013-02-13 中国石油天然气股份有限公司 Method for processing foul gas through using biological combined technology
CN104190245A (en) * 2014-09-12 2014-12-10 北京科技大学 Biological deodorization device taking slow release carbon as filling
CN104524966A (en) * 2014-12-02 2015-04-22 天津大学 Spray coating waste gas biological purification composite treatment method
CN104689709A (en) * 2015-02-07 2015-06-10 广州雅创环保科技有限公司 Biological treatment equipment for volatile organic waste gas
CN106237832A (en) * 2016-08-29 2016-12-21 郑晓宇 A kind of tower biological filter emission-control equipment saving occupation of land
CN106512710A (en) * 2016-11-23 2017-03-22 中国矿业大学 Gas-liquid mass transfer box and bio-trickling filter
US9808794B2 (en) 2013-09-23 2017-11-07 Corning Incorporated Honeycomb ceramic substrates, honeycomb extrusion dies, and methods of making honeycomb ceramic substrates
CN108744947A (en) * 2018-05-22 2018-11-06 东莞市环境科学研究所 A kind of new membrane bio-trickling filter processing organic exhaust gas method
CN108751395A (en) * 2018-06-01 2018-11-06 北京工业大学 The method of the vulcanisation hydrogen of two-stage and volatile organic matter coupling aerobic denitrification advanced nitrogen
CN109351129A (en) * 2018-09-29 2019-02-19 广东中微环保生物科技有限公司 A kind of processing unit and method of butyl acetate exhaust gas

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101898079B (en) * 2009-05-25 2012-05-30 中国石油化工股份有限公司 Treatment method of storage tank-dissipating stinking sulfur-containing waste gas
CN101664637B (en) * 2009-09-16 2012-03-28 湖北省农业科学院植保土肥研究所 Multilayer mixed culture biological deodorizing filter tower and method for removing malodorous gases
CN101780373A (en) * 2010-03-23 2010-07-21 浙江大学 Method for biologically removing sulfureted hydrogen from marsh gas
CN101862591A (en) * 2010-06-23 2010-10-20 重庆正天环保产业有限公司 Method for biological treatment of rubber vulcanized tail gas
CN101862591B (en) * 2010-06-23 2012-05-23 重庆正天环保产业有限公司 Method for biological treatment of rubber vulcanized tail gas
CN102921293A (en) * 2011-08-12 2013-02-13 中国石油天然气股份有限公司 Method for processing foul gas through using biological combined technology
CN102921293B (en) * 2011-08-12 2014-10-15 中国石油天然气股份有限公司 Method for processing foul gas through using biological combined technology
CN102631837A (en) * 2012-04-27 2012-08-15 陈小光 Integrated type sulfur-containing waste gas purifying device
CN102631837B (en) * 2012-04-27 2014-08-13 陈小光 Integrated type sulfur-containing waste gas purifying device
US9808794B2 (en) 2013-09-23 2017-11-07 Corning Incorporated Honeycomb ceramic substrates, honeycomb extrusion dies, and methods of making honeycomb ceramic substrates
CN104190245B (en) * 2014-09-12 2017-01-18 北京科技大学 Biological deodorization device taking slow release carbon as filling
CN104190245A (en) * 2014-09-12 2014-12-10 北京科技大学 Biological deodorization device taking slow release carbon as filling
CN104524966B (en) * 2014-12-02 2016-08-24 天津大学 A kind of spraying exhaust gas biological purifying combination treatment method
CN104524966A (en) * 2014-12-02 2015-04-22 天津大学 Spray coating waste gas biological purification composite treatment method
CN104689709A (en) * 2015-02-07 2015-06-10 广州雅创环保科技有限公司 Biological treatment equipment for volatile organic waste gas
CN106237832A (en) * 2016-08-29 2016-12-21 郑晓宇 A kind of tower biological filter emission-control equipment saving occupation of land
CN106512710A (en) * 2016-11-23 2017-03-22 中国矿业大学 Gas-liquid mass transfer box and bio-trickling filter
CN108744947A (en) * 2018-05-22 2018-11-06 东莞市环境科学研究所 A kind of new membrane bio-trickling filter processing organic exhaust gas method
CN108751395A (en) * 2018-06-01 2018-11-06 北京工业大学 The method of the vulcanisation hydrogen of two-stage and volatile organic matter coupling aerobic denitrification advanced nitrogen
CN109351129A (en) * 2018-09-29 2019-02-19 广东中微环保生物科技有限公司 A kind of processing unit and method of butyl acetate exhaust gas

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